Validation and Reliability of the Thai Version of the Oxford
Shoulder Score
Natthiya Tantisiriwat MD1, Vatanya Wongmatikul MD2, Araya Jaroenarpornwatana MD1, Siriporn Janchai MD3
Affiliation :
1 Department of Rehabilitation Medicine, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
and Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
2 Department of Rehabilitation Medicine, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
3 Department of Rehabilitation Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
Objective : To assess the validity and reliability of Oxford shoulder score Thai version [OSS-TH].
Materials and Methods : The cross-sectional descriptive study of patients with shoulder pain and/or disorders at Department of
Rehabilitation Medicine, King Chulalongkorn Memorial Hospital, Bangkok, Thailand. Oxford shoulder score [OSS] is an internationally
recognized shoulder-speci(cid:976)ic patient reported outcomes [PRO] questionnaire. OSS consists of 12 questions that explore various
aspects of shoulder-related problems. The higher the OSS score, the more severe the shoulder problem. Construct validity was
evaluated by visual analog scale for pain [VAS-pain], Thai version of disability of arm, shoulder, and hand [DASH-TH], and Thai
version 2.0 of the medical outcomes study [MOS] short form-36 [SF36-TH]. Reliability was evaluated by internal consistency and
test-retest method.
Results : One hundred native Thai speaking participants with shoulder pain and/or disorders were included between November
1, 2015 and April 30, 2016. The mean age of the patients was 56.67 years and 70 participants were female. The most common
diagnoses were rotator cuff disease (46%) and adhesive capsulitis (40%). A majority of participants were able to complete the
OSS-TH questionnaire within approximately 3.5 minutes. OSS-TH signi(cid:976)icantly highly correlated with DASH-TH (r = 0.82). Regarding
the SF36-TH, OSS-TH signi(cid:976)icantly moderately correlated with the physical role functioning, bodily pain, social role functioning. A
Cronbach’s alpha of 0.92 revealed high internal consistency. All patients participated in the test-retest process, for an average time
to retest of 4.57 days and an intraclass correlation coef(cid:976)icient of 0.92.
Conclusion : The original English language version of the OSS was meticulously translated into Thai language to create the OSS-TH.
The (cid:976)indings of the present study demonstrated the acceptable validity and reliability of the OSS-TH. Accordingly, the OSS-TH can
be reliably adopted for using as a Thai PRO that is speci(cid:976)ic to shoulder pain/disorders.
Keywords : OSS-TH, Oxford shoulder score, Patient-reported outcomes, Shoulder pain, Shoulder disorders
All Articles
Download